The MQ-8 sensor allows the measurement of hydrogen concentration in the air. The measuring range of the sensor is in the range of 100 - 10,000 ppm.

Crowtail-PIR Motion Sensor 2.0 is a digital motion sensor for use in alarm systems, building automation and interactive projects. It provides a wide detection angle and adjustable range in a compact form with easy connection through the Crowtail interface.

Module with a TDS sensor that allows you to measure the total content of solids dissolved in water. The board is equipped with a Grove connector and communicates via an analog interface. Seeed Studio 101020753

A compact Hall-effect current sensor that provides accurate DC and AC current measurement within a ±30 A range with galvanic isolation. It features a high-sensitivity analog VOUT output with a 150 kHz bandwidth, enabling fast and precise readings in dynamic systems. The module operates over a wide temperature range of -40°C to 125°C, and the low current path resistance minimizes energy loss. Its small size and flexible mounting options make it ideal for prototyping, industrial systems, and space-constrained projects. Pololu 5445

The Pololu MinIMU-9 v5 is an inertial measurement unit (IMU) that packs an LSM6DS33 3-axis gyro and 3-axis accelerometer and an LIS3MDL 3-axis magnetometer onto a tiny 0.8″ × 0.5″ board.

Module with an optical flow sensor PMW3901. It uses a low resolution camera to detect surface movement. It communicates via the SPI interface. Pimoroni PIM453

A round, flexible, pressure sensor that can be used to realize very sensitive force detection. The sensor is durable and designed to detect static and dynamic pressure at high reaction speed. DFRobot SEN0298

Earth humidity sensor with analogue output, supplied with 3.3 to 5.5 V voltage with Gravity connector. DFRobot SEN0193

Module with 13 QTR type optocoupler with RC (digital) output. The module operates from 2.9 V to 5.5 V, detects objects at a distance of up to 40 mm. The sensor will be used in projects that require detection of changes in the ground, e.g. in linefollower robots. Pololu 4153

A compact Hall-effect current sensor that provides accurate DC and AC current measurement within a ±10 A range with galvanic isolation. It features a high-sensitivity analog VOUT output with a 150 kHz bandwidth, enabling fast and precise readings in dynamic systems. The module operates over a wide temperature range of -40°C to 125°C, and the low current path resistance minimizes energy loss. Its small size and flexible mounting options make it ideal for prototyping, industrial systems, and space-constrained projects. Pololu 5446

Crowtail – Electricity Sensor 2.0 enables precise measurement of alternating current up to 5 A, converting the signal into a 2 V analog voltage. Intended for energy monitoring projects and integration with microcontroller systems.

Photoelectric liquid level sensor FS-IR02 in a set with a Gravity adapter. DFRobot SEN0205

SGP41 gas sensor module for VOC and NOx measurement with I2C interface and STEMMA QT/Qwiic connectors, equipped with dual MOX sensing elements. Adafruit 6455

Crowtail-Microwave Sensor 2.0 is a motion sensor module based on the Doppler effect, designed for integration with Arduino and Crowduino platforms. Thanks to its resistance to environmental factors, it is suitable for industrial automation, security systems and smart installations.

Module with MLX90614-DCC sensor for non-contact temperature measurement in the range from -70℃ to 380℃. I2C communication. DFRobot SEN0206

Mini module with ToF VL53L5CX sensor with a matrix of 64 pixels and a range of up to 4 m. It is equipped with a Qwiic/STEMMA QT connector and communicates via the I2C interface. Pimoroni PIM622

The STEVAL-MKI079V1 board enables demonstration and testing of the dual-axis LPR430AL gyroscope in analog or digital mode. The built-in microcontroller and USB interface facilitate signal analysis and the development of MEMS sensor-based applications in measurement and control systems.

SEN-14032

Module with integrated BME688 gas, pressure, temperature and humidity sensor placed in one MEMS housing. It is equipped with an I2C interface. Adafruit 5046

A compact Hall-effect current sensor that provides accurate DC and AC current measurement within a ±30 A range with galvanic isolation. It features an analog VOUT output with a sensitivity of 44 mV/A and a 150 kHz bandwidth, enabling fast and precise readings in dynamic systems. The module operates over a wide temperature range of -40°C to 125°C, and the low current path resistance (~1.6 mΩ) minimizes energy loss. Its small size and flexible mounting options make it ideal for prototyping, industrial systems, and space-constrained projects. Pololu 5441